TireRack does tire testing using 5-series BMWs, and their procedures and objectivity are well thought of by Consumer Reports and others.
Lee Clancy is one of the tire testers at TireRack, and his group recently did road and circuit testing of various brands. Reportedly, the Avon Tech M550 A/S was very well thought of, so you may want to talk to him about his observations. I bought a set and like them alot. Very good tire fora a very good price.
Still, no matter which tire you choose, it's always a compromise. Others may have different ideas, but a Google search for this tire will find favorable comments about this new tire from BMW and Mercedes enthusiasts.
Originally Posted by wareagle72